I have started to grass the part of the layout where the ballast glue is dry and also blending some pre-made resin buildings with static grass. The light earth down the sides and in the middle of the ballast is mainly for texture and will be partly recoloured later.
About 50% of the track is ballasted but only about half of that is glued down. No weathering has taken place yet. The river (stream) needs to be gloss varnished and then reeds added.